building envelope design - kristian gjoka, enrico salcuni
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Building Energy Modeling and Building Envelope DesignProfESSOR ENRICO DE ANGELISKRISTIAN GJOKA ENRICO SALCUNIPOLITECNICO DI MILANOMSC BUILDING ENGINEERINGACADEMIC YEAR 2015/2016
Building description01/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions02/40
Boundary Conditions
02/40
Boundary Conditions
02/40
Boundary Conditions
02/40
Assumptions on adjacent zones
MonthDifference of MonthlyAverage TemperatureJANUARY0.51%FEBRUARY0.09%MARCH0.03%APRIL0.12%MAY0.10%JUNE0.10%JULY0.11%AUGUST0.12%SEPTEMBER0.18%OCTOBER0.15%NOVEMBER0.31%DECEMBER0.33%
03/40
Assumptions on wingwall height
04/40
SchedulingMonday - Friday08:00 - 18:0005/40
Glazing systemVentilation1 vol/h during business hours, otherwise
Baseline ModelSlab massMassless layers, except for tiles and plasterboard
06/40
Spandrel vs. Glazing07/40
Optimizations:Glazing System (double/triple glazing, different coatings)Ratio of opaque to transparent areaShading System (venetians, overhang)Thermal inertia (massless/massive slabs)Night time ventilation (2-5-10 vol/h)08/40
GLAZINGDEGREE HOURSYEARLY ENERGY DEMAND09/40
GLAZING LOW-E10/40TEMPERATURE DISTRIBUTION
11/40AVERAGE DAY - JANUARYGLAZING LOW-E
AVERAGE DAY - AUGUST12/40GLAZING LOW-E
13/40TEMPERATURE DISTRIBUTIONGLAZING SELECTIVE
GLAZING SELECTIVE13/40TEMPERATURE DISTRIBUTION
14/40AVERAGE DAY - JANUARYGLAZING SELECTIVE
15/40AVERAGE DAY - AUGUSTGLAZING SELECTIVE
16/40TEMPERATURE DISTRIBUTIONGLAZING SELECTIVE + LOW-E
16/40TEMPERATURE DISTRIBUTIONGLAZING SELECTIVE + LOW-E
17/40DEGREE HOURSGLAZING SELECTIVE809813770
17/40DEGREE HOURSGLAZING SELECTIVE85451041124%5%
DEGREE HOURSYEARLY ENERGY DEMAND18/40SHADING
19/40TEMPERATURE DISTRIBUTIONSHADING OVERHANGS
20/40TEMPERATURE DISTRIBUTIONSHADING VENETIANS
21/40AVERAGE DAY - JANUARYSHADING OVERHANGS
22/40AVERAGE DAY - JANUARYSHADING VENETIANS
23/40AVERAGE DAY - AUGUSTSHADING OVERHANGS
24/40AVERAGE DAY - AUGUSTSHADING VENETIANS
25/40DEGREE HOURSSHADING VENETIANS
25/40DEGREE HOURS9938762645%23%SHADING VENETIANS
MASS AND VENTILATIONDEGREE HOURSYEARLY ENERGY DEMAND26/40
27/40TEMPERATURE DISTRIBUTIONVENTILATION
28/40AVERAGE DAY - AUGUSTVENTILATION
29/40TEMPERATURE DISTRIBUTIONMASSIVE SLAB
30/40AVERAGE DAY - AUGUSTMASSIVE SLAB
31/40AVERAGE DAY - JANUARYMASSIVE SLAB
32/40DEGREE HOURSMASSIVE SLAB
32/40DEGREE HOURSMASSIVE SLAB8694822740%7%
33/40THERMAL INERTIA VS INSULATIONMASSIVE SLAB
34/40THERMAL INERTIA VS INSULATIONVENTILATION8090135302%0%
35/40THERMAL INERTIA VS INSULATIONMASSIVE SLAB + VENTILATION8715539061%8%
MASS + VENT.MASS + VENT. + SEL.LETS SUMMARISE!BASELINEGLAZINGAREA 2/3SHADINGMASSVENTILATIONLOW-ESELECTIVEVENETIANSOVERHANGSLIGHT MASS2 VOL/h5 VOL/h10 VOL/hLOW-E + SELECTIVEAREA 2/3SELECTIVEVENETIANSMASSIVE SLAB10 VOL/hMASS + VENT. + SEL.+VENETIANS36/40
DEGREE HOURSYEARLY ENERGY DEMAND37/40COMBINATION STRATEGIES
38/40TEMPERATURE DISTRIBUTIONFINAL STRATEGY
39/40THERMAL INERTIA VS INSULATIONFINAL STRATEGY8320149689%3%
THANKS FOR YOUR ATTENTIONKRISTIAN GJOKA ENRICO SALCUNI40/40
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